This Passive Aggressive Diaries blog posting is Part Two of the four-part series on why individuals behave passive aggressively. In The Angry Smile: The Psychology of Passive Aggressive Behavior in ...

A sample of 4,013 participants from 24 countries were asked about aggression toward siblings and non-sibs, to determine ...

Dogs are man's best friend, but they are still animals, and sometimes their wolf-like behavior comes out in aggression. Some kinds of canine aggression to be aware of are resource guarding aggression, ...

A UB developmental psychologist has received a $550,000 grant from the National Science Foundation to study possible pathways that might lead young children toward different types of aggressive ...

Having to work with frustrating people is simply part of life. You can't escape them. But you also don't have to grin and bear the stress as if you have no choice. While researching for my new book, ...

Often, passive-aggressive behavior stems from what is typically a good thing: the desire to avoid conflict. Or, it could be a ...

New research provides evidence that women with high levels of psychopathy are more likely to engage in physical, verbal, and ...